Which of the following statements concerning the formal char…

Which of the following statements concerning the formal charge of an atom is/are true?   1. The formal charge of each individual atom in a molecule or ion is the actual atomic charge that can be determined experimentally.   2. The formal charge of each individual atom is always the same for each possible resonance form.   3. The sum of the formal charges of each atom in an ion equals the overall charge of the molecule or ion.

Which of the following statements concerning wave mechanics…

Which of the following statements concerning wave mechanics is/are correct?   1. The energy of an electron is quantized.   2. The energy of an electron is equal to its mass multiplied by the square of its velocity.   3. Electrons travel in circular orbits around a nucleus.

Which of the following statements is/are CORRECT?   1. FM…

Which of the following statements is/are CORRECT?   1. FM radio waves have longer wavelengths than visible radiation and AM radio waves have shorter wavelengths than visible radiation.   2. Magnetic resonance imaging (MRI) uses a mixture of x-rays and gamma rays.   3. Exposure to ultraviolet (UV) radiation can lead to sunburns.